Sapphire-berry (Symplocos paniculata) — identification, habitat & look-alikes

Sapphire-berry is an East Asian shrub grown in U.S. gardens since around 1871 for its vivid blue berries. It has escaped from gardens into moist woodland edges in parts of the Northeast. In the wild it grows in the Himalayas and East Asia.

Appearance

Appearance: A deciduous shrub or small spreading tree with grayish bark, usually 8–16 ft (2.5–5 m) tall and occasionally up to about 40 ft (12 m).
Flowers: Small, fragrant white flowers with many stamens, in branched clusters in late spring to early summer.
Fruit: Small, roughly 1/8–1/3 in (3–8 mm) berries with one seed. Garden sapphire-berry has vivid blue fruit; some wild plants, including the rare wetland shrubs of Japan, have black fruit.

Look-alikes

Symplocos sawafutagi

This is the common blue-berried shrub of Japan and Korea, and some botanists include it in S. paniculata. Blue-fruited garden plants are hard to assign to one species or the other from a photo.

Why they get mixed upThe blue-fruited garden shrub has long been sold as Symplocos paniculata.

Where it lives

Typical habitats: Mountain forests
Wetland edges
Woodland edges
Range: Native from the Himalayas through China and Taiwan to Japan and northern Indochina. In the U.S. it is introduced and has in Connecticut, Massachusetts, New York, Pennsylvania, and Washington, D.C.
Preferred conditions: In its native range it grows in mountain forests, valleys, and swamps. Garden plants are very cold-hardy (around USDA zone 4) and fruit best where summers are long and sunny.

Growing it

Care: Plants won't set fruit with their own pollen, so gardeners grow several seedlings together rather than a single clone. In New York it self-seeds into native woods and forms suckering thickets.

Name and classification

About the name: A 1993 study of the Japanese plants kept the name Symplocos paniculata only for a rare black-fruited wetland shrub of Honshu and split the common blue-fruited shrub off as S. sawafutagi. Other botanists use S. paniculata broadly for plants from the Himalayas to Japan, and U.S. nurseries still sell the blue-berried garden shrub under this name.